Positioning and clamping mechanism for silk-screen printing

Abstract

The utility model provides a positioning and clamping mechanism for silk-screen printing, and belongs to the technical field of silk-screen printing. The positioning and clamping mechanism for silk-screen printing comprises a positioning table, two first driving motors are symmetrically arranged on the left side of the positioning table, output shafts of the first driving motors are in transmission connection with first bidirectional lead screws, and a plurality of first grooves are further formed in the positioning table; first guide rails are installed on the two side walls in the first groove, first sliding blocks are arranged on the two first guide rails in a sliding mode, and the two first sliding blocks are symmetrically connected to the first bidirectional lead screw. The clamping device has the advantages of being high in positioning efficiency and accurate in clamping.

Description

Technical Field

[0001] The utility model belongs to the technical field of screen printing, in particular to a positioning clamping mechanism used for screen printing. Background Art

[0002] A screen printer is a machine that uses a screen printing plate to print. It is a type of printing machine. A screen printer is a machine that prints text and images. It is a general term for machines or equipment used to produce printed products. When placing, positioning and clamping printed materials, existing screen printers need to manually position and adjust the length, width and height, and the positioning takes a long time. During manual positioning, the shaking or vibration of the printed material caused by the operator adjusting the positioning device will also lead to poor positioning results. Summary of the invention

[0003] The purpose of the utility model is to solve the above problems in the existing technology and to propose a positioning and clamping mechanism for screen printing, which has the advantages of high positioning efficiency and precise clamping.

[0004] The purpose of the utility model can be achieved by the following technical solutions: a positioning and clamping mechanism for screen printing, comprising a positioning platform, two first drive motors are symmetrically arranged on the left side of the positioning platform, a first bidirectional lead screw is transmission-connected to the output shaft of the first drive motor, a plurality of first grooves are also opened in the positioning platform, first guide rails are installed on the two side walls of the first groove, first sliding blocks are slidably arranged on the two first guide rails, and two first sliding blocks are symmetrically connected to the first bidirectional lead screw;

[0005] A first positioning plate is fixed on the first sliding block, a second driving motor is installed at one end in the width direction of the first positioning plate, a second bidirectional lead screw is drivingly connected to the output shaft of the second driving motor, a second groove is provided on the inner side of the first positioning plate, and a second guide rail is installed at the bottom of the groove, a second sliding block is slidably arranged on the second guide rail, the second sliding block passes through the second groove and is fixedly connected to a connecting rod, and a frame-type clamping member is fixedly connected to the connecting rod for positioning and clamping the printed matter in the front and rear directions;

[0006] A suction cup assembly is also provided at the center of the positioning platform for fixing the column printing object.

[0007] Preferably, the frame-type clamping member includes a connecting block, a frame-type clamping frame, a third guide rail, a lifting motor, and a first lifting plate, the connecting rod passes through the connecting block and is fixedly connected to the connecting block, the connecting block is fixedly connected to the frame-type clamping frame, two third guide rails are symmetrically arranged on the vertical plate of the frame-type clamping frame, a lifting motor is installed on the frame-type clamping frame, the lifting rod of the lifting motor passes through the top of the frame-type clamping frame and is fixedly connected to the first lifting plate, and the side of the first lifting plate close to the frame-type clamping frame slides with the third guide rail.

[0008] Preferably, a buffer pad is also installed on the bottom plate of the frame-shaped clamp.

[0009] Preferably, the suction cup assembly includes a fixed frame, a fourth guide rail, a second lifting plate, a vacuum suction cup and a cylinder barrel, a third groove is opened at the center position of the positioning platform, the fixed frame is arranged in the third groove in the positioning platform, the fixed frame has a fourth guide rail, a second lifting plate is slidably arranged on the fourth guide rail, a cylinder barrel is installed at the bottom of the second lifting plate, the cylinder barrel passes through the second lifting plate through a pipeline and is connected to the vacuum suction cup.

[0010] Preferably, the moving directions of the first sliding block and the second sliding block are perpendicular.

[0011] Preferably, the bottom plate of the frame-type clamping frame is always equal to the maximum height of the vacuum suction cup, and is always higher than or equal to the maximum height of the positioning platform.

[0012] Compared with the prior art, the advantages of the utility model are: the first sliding block is driven by the first bidirectional lead screw and the second sliding block is driven by the second bidirectional lead screw, the two side edges of the printed material in the length direction are positioned by the first positioning plate, and the printed material is clamped by the frame-type clamping member, which is conducive to accurately positioning the two side edges in the width direction of the printed material. At the same time, when the printed material is placed on the positioning table, the suction cup assembly can better fix the printed material to prevent the printed material from vibrating or deflecting, which is conducive to high positioning efficiency and precise clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a top view of the utility model.

[0014] Figure 2 It is a side sectional view of the utility model.

[0015] Figure 3 It is a connection diagram of the positioning platform and the first positioning block in the utility model.

[0016] Figure 4 It is a cross-sectional view of the first positioning block and the frame-shaped clamping member in the utility model.

[0017] Figure 5It is a structural diagram of the middle frame type clamping member of the utility model.

[0018] Figure 6 It is a structural diagram of the suction cup assembly in the utility model.

[0019] In the figure, 2, positioning table; 21, first drive motor; 22, first bidirectional lead screw; 23, first groove; 24, first guide rail; 25, first sliding block; 31, first positioning plate; 32, second drive motor; 33, second bidirectional lead screw; 34, second guide rail; 35, second sliding block; 36, connecting rod; 37, second groove; 4, frame-type clamping member; 41, connecting block; 42, frame-type clamping frame; 43, third guide rail; 44, lifting motor; 45, first lifting plate; 46, buffer pad; 51, fixing frame; 52, fourth guide rail; 53, second lifting plate; 54, vacuum suction cup; 55, cylinder barrel; 56, third groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] like Figures 1 to 6 As shown, a positioning and clamping mechanism for screen printing includes a positioning platform 2, two first drive motors 21 are symmetrically arranged on the left side of the positioning platform 2, and a first bidirectional lead screw 22 is transmission-connected to the output shaft of the first drive motor 21, and a plurality of first grooves 23 are also opened in the positioning platform 2, and first guide rails 24 are installed on the two side walls of the first grooves 23, and first sliding blocks 25 are slidably arranged on the two first guide rails 24, and two first sliding blocks 25 are symmetrically connected to the first bidirectional lead screw 22; a first positioning plate 31 is fixed on the first sliding block 25, and one end of the first positioning plate 31 in the width direction is installed A second driving motor 32, the output shaft of which is transmission-connected with a second bidirectional lead screw 33, a second groove 37 is provided on the inner side of the first positioning plate 31, and a second guide rail 34 is installed at the bottom of the groove, the second guide rail 34 is slidably provided with a second sliding block 35, the second sliding block 35 passes through the second groove 37 and is fixedly connected with a connecting rod 36, the connecting rod 36 is fixedly connected with a frame-type clamping member 4, which is used for positioning and clamping the front and rear directions of the printed matter; the moving directions of the first sliding block 25 and the second sliding block 35 are perpendicular, and a suction cup assembly is also provided at the center of the positioning platform 2 for fixing the printed matter.

[0022] In the present invention, the first bidirectional screw 22 and the second bidirectional screw 33 are prior art.

[0023] With the above structure, the first bidirectional lead screw 22 set in the two symmetrically arranged first grooves 23 of the positioning platform 2 and the first guide rail 24 slidably arranged at the bottom of the first sliding block 25 are driven by the first driving motor 21 to rotate. The first bidirectional lead screw 22 can move the two first sliding blocks 25 inward or to both ends at the same time, so that the first positioning plate 31 on the first sliding block 25 moves toward the center of the positioning platform 2 or to both sides, which is conducive to accurately positioning the two sides of the length direction of the printed matter, and quickly positioning with high positioning efficiency; the first driving motor 21 set on the first positioning plate 31 The second bidirectional lead screw 33 is driven to rotate, and at the same time, the second bidirectional lead screw 33 can also move the two sliding blocks inward or to both ends at the same time, and the first guide rail 24 in the first groove 23 of the first positioning plate 31 slides with the second sliding block 35, driving the frame-type clamping member 4 on the second sliding block 35 to move inward or to both ends at the same time. The printed matter is clamped by the frame-type clamping member 4, which is conducive to accurately positioning the two side edges in the width direction of the printing plate. At the same time, when the printed matter is placed on the positioning table 2, the suction cup assembly can better fix the printed matter to prevent the printed matter from vibrating or deflecting.

[0024] Specifically, if Figures 1 to 6 As shown, the frame-type clamping member 4 includes a connecting block 41, a frame-type clamping frame 42, a third guide rail 43, a lifting motor 44, and a first lifting plate 45. The connecting rod 36 passes through the connecting block 41 and is fixedly connected to the connecting block 41. The connecting block 41 is fixedly connected to the frame-type clamping frame 42. Two third guide rails 43 are symmetrically arranged on the vertical plate of the frame-type clamping frame 42. A lifting motor 44 is installed on the frame-type clamping frame 42. The lifting rod of the lifting motor 44 passes through the top of the frame-type clamping frame 42 and is fixedly connected to the first lifting plate 45. The first lifting plate 45 slides with the third guide rail 43 on one side close to the frame-type clamping frame 42.

[0025] With the above structure, the printed matter is placed on the frame-type clamping frame 42, the lifting motor 44 pushes the first lifting plate 45 downward, and the third guide rail 43 and the first lifting plate 45 slide in cooperation, so that the first lifting plate 45 is moved downward by the force of the lifting rod of the lifting motor 44 and abuts against the upper surface of the printed matter. The printed matter is clamped by the frame-type clamping frame 42 and the first lifting plate 45, which is conducive to firm clamping, simple structure, accurate positioning, and higher positioning efficiency.

[0026] like Figures 1 to 6 As shown, a buffer pad 46 is also installed on the bottom plate of the frame-type clamping member 4.

[0027] With the above structure, by providing the buffer pad 46, the buffer pad 46 abuts against the lower surface of the printed matter, which is conducive to playing a role of buffering and shock absorption, and preventing the printed matter from being damaged by too great an impact force.

[0028] like Figures 1 to 6 As shown, the suction cup assembly includes a fixed frame 51, a fourth guide rail 52, a second lifting plate 53, a vacuum suction cup 54 and a cylinder barrel 55. A third groove 56 is opened at the center of the positioning platform 2. The fixed frame 51 is arranged in the third groove 56 in the positioning platform 2. The fixed frame 51 has a fourth guide rail 52, and the second lifting plate 53 is slidably arranged on the fourth guide rail 52. A cylinder barrel 55 is installed at the bottom of the second lifting plate 53. The cylinder barrel 55 passes through the second lifting plate 53 through a pipeline and is connected to the vacuum suction cup 54.

[0029] In the present invention, the vacuum suction cup 54 and the cylinder barrel 55 are prior art.

[0030] With the above structure, when it is necessary to adsorb printed matter, the second lifting plate 53 on the fixed frame 51 is lifted upward on the first guide rail 24 to a predetermined position, and at the same time, the cylinder barrel 55 is connected to the vacuum suction cup 54 to extract the air near the vacuum suction cup 54, which is conducive to adsorbing the printed matter and better fixing the printed matter.

[0031] like Figures 1 to 6 As shown, the bottom plate of the frame-type clamping frame 42 is always equal to the maximum height of the vacuum suction cup 54, and is always higher than or equal to the maximum height of the positioning table 2. This is conducive to stable and accurate positioning of the printed matter, preventing the printed matter from tilting or deflecting, and improving the positioning quality of the device.

[0032] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. At the same time, the meaning of "and / or" appearing in the full text is that it includes three schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0034] The above components are all common standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0035] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A positioning and clamping mechanism for screen printing, comprising a positioning table (2), characterized in that: Two first drive motors (21) are symmetrically arranged on the left side of the positioning platform (2), and a first bidirectional lead screw (22) is drivingly connected to the output shaft of the first drive motor (21). A plurality of first grooves (23) are also provided in the positioning platform (2), and first guide rails (24) are installed on the two side walls of the first grooves (23). First sliding blocks (25) are slidably arranged on the two first guide rails (24), and two first sliding blocks (25) are symmetrically connected to the first bidirectional lead screw (22); A first positioning plate is fixed on the first sliding block (25); a second driving motor (32) is installed at one end in the width direction of the first positioning plate; a second bidirectional lead screw (33) is drivingly connected to the output shaft of the second driving motor (32); a second groove (37) is provided on the inner side of the first positioning plate and a second guide rail (34) is installed at the bottom of the groove; a second sliding block (35) is slidably arranged on the second guide rail (34); the second sliding block (35) passes through the second groove (37) and is fixedly connected to a connecting rod (36); the connecting rod (36) is fixedly connected to a frame-shaped clamping member (4) for positioning and clamping a printed matter in a front-rear direction; A suction cup assembly is also provided at the center of the positioning platform (2) for fixing the column printed matter.

2. A positioning and clamping mechanism for screen printing according to claim 1, characterized in that: The frame-type clamping member (4) comprises a connecting block (41), a frame-type clamping frame (42), a third guide rail (43), a lifting motor (44), and a first lifting plate (45); the connecting rod (36) passes through the connecting block (41) and is fixedly connected to the connecting block (41); the connecting block (41) is fixedly connected to the frame-type clamping frame (42); two third guide rails (43) are symmetrically arranged on the vertical plate of the frame-type clamping frame (42); a lifting motor (44) is installed on the frame-type clamping frame (42); a first lifting rod of the lifting motor (44) passes through the top of the frame-type clamping frame (42) and is fixedly connected to the first lifting plate (45); and a side of the first lifting plate (45) close to the frame-type clamping frame (42) is slidably matched with the third guide rail (43).

3. A positioning and clamping mechanism for screen printing according to claim 1, characterized in that: A buffer pad (46) is also installed on the bottom plate of the frame-shaped clamping member (4).

4. A positioning and clamping mechanism for screen printing according to claim 1, characterized in that: The suction cup assembly comprises a fixing frame (51), a fourth guide rail (52), a second lifting plate (53), a vacuum suction cup (54) and a cylinder barrel (55); a third groove (56) is provided at the center of the positioning platform (2); the fixing frame (51) is arranged in the third groove (56) in the positioning platform (2); the fixing frame (51) has a fourth guide rail (52); a second lifting plate (53) is slidably arranged on the fourth guide rail (52); a cylinder barrel (55) is installed at the bottom of the second lifting plate (53); the cylinder barrel (55) passes through the second lifting plate (53) through a pipeline and is connected to the vacuum suction cup (54).

5. The positioning and clamping mechanism for screen printing according to claim 1, characterized in that: The moving directions of the first sliding block (25) and the second sliding block (35) are perpendicular.

6. A positioning and clamping mechanism for screen printing according to claim 2, characterized in that: The bottom plate of the frame-type clamping frame (42) is always equal to the maximum height of the vacuum suction cup (54), and is always higher than or equal to the maximum height of the positioning platform (2).

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